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Lanthanide Nd ion-doped two-dimensional In~2~Se~3~ nanosheets with near-infrared luminescence property by Yuan Liu; Gongxun Bai; Li Jiang; Youjie Hua; Liang Chen; Shiqing Xu is a Engineering article available to read on EtoBox.

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Ultrathin two-dimensional (2D) materials have drawn great attention in recent years due to their promising applications in biomedicine and atomically optoelectronic devices. In this work, we have fabricated a 2D In 2 Se 3 nanosheet doped with Nd 3+ ions via the two-step method of solid phase synthesis and liquid exfoliation. Owing to the special inner 4f-4f energy level transitions, lanthanide ions can emit photons with almost the same energy in different environments. Here, a stable near-infrared luminescence from Nd 3+ -doped 2D In 2 Se 3 nanosheets has been realized, which includes emission bands around 910, 1057, and 1324 nm. The doping of Nd 3+ ions extends the emission region of In 2 Se 3 nanosheets. Moreover, the photoluminescence mechanism of Nd 3+ ions was investigated through a series of optical measurements. This work not only provides a reliable method to fabricate lanthanide ion-doped 2D materials but also possesses a great significance for luminescence study of lanthanide ions in the 2D matrix.

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Author

Yuan Liu; Gongxun Bai; Li Jiang; Youjie Hua; Liang Chen; Shiqing Xu

Publisher

Walter de Gruyter GmbH

Published

2020

Language

EN

Field

Engineering (Physical Sciences)